Resumen

In this paper, we present the calibration results of a bending machine prototype, designed and constructed for bending beam failure, in accordance with the INV E 2012 regulation. In the calibration process, test beams of different flexural strengths were failed, both in the prototype and in the calibrated machine. From the resistance to compression of concrete cylinders after 7 and 14 days of curing, the cracking stresses of the obtained resistances were calculated and a comparative analysis was made with the crack modules obtained for the prototype and the calibrated machine. The results obtained indicate that the prototype shows values of cracking modules between 96% and 97% of those obtained with the calibrated machine and that it is therefore a good alternative at low cost for use as a support tool for teaching in the area of structures in the Civil engineering department of Universidad de Ibagué.